I know that this safety question will be popular in comments. There will be a separate video about it. But so far, consider this as a woodworking. Do you worry about wood fibers in your skin? Wear gloves. Do you worry about wood particles in the air? Wear mask, safety glasses. By the way, I wouldn't do this "rubbing against skin" test with the wood, but I did with CF filaments. Of course, those who are working with these materials regularly, they should take in account all those safety measures.
Technically speaking the biggest reason for CF and GF in plastics is to improve warping and shrinkage. Especially with nylon or PA the parts are warped and all the tolreances are off. In most cases it is not the strength and almost always glass fibers are used not carbon fibers because they are way cheaper and don´t create a shot circute or other problems. In 3D printing the CF is popular because people think it improves strengh, it´s just a sales gimmick that´s all. Also it´s really dangerous to work with those materials, you can get something close to "asbestosis" if you are not carefull, so please use your PPE. Good video Igor, well done.
Working for a Canadian Industrial 3D FFF printer manufacturer as the operational trainer, I always suggest that fiber filled materials be handled with caution and are post processed accordingly. A simple clear coating of some sort can effectively mitigate the loose fiber issue completely. Shellac spray or dip, clear varnish / paint or other coating is easy and effective. Most customers are looking for quick parts with zero post processing, but in this case, I always suggest something.
@@SeanTaffert Thanks for the insight Sean. I'll be working at a University next year with a makerspace and will try to bring this knowledge about fiber-filled materials to the managers of the makerspace. Safety of the students should be our top priority and I think 3d printing is just so new that a lot of the safety information isn't broadly understood/distributed.
it would be great to measure how much fibers dust would be produced during the printing. So you could modify your suggested experiment, but instead of rubbing the objects, just print a benchie with enclosure. Use multiple samples to collect the dust do address potential hot spots due to air circulation from the hotend and part cooling fans.
For the airborne particle test, place a fan extractor on the enclosure pulling air through a replaceable white HEPA filter, a vacuum cleaner would work instead of a fan. Keep the exit aperture small. Test with a gears mechanism wearing against each other. Your worm gear model design from a previous wear video would seem useful. Perhaps measure particle size and count / mm2 under a microscope with a carefully controlled aperture and flow rate / suction pressure, and consistent speed setting on the gears.
Nice video, in a previous video you mentioned comparing carbon fiber vs glass fiber. I thought this was that video given your title. Hope to see more on this. You do a great job with your testing.
Great video as always. Traditional fiber reinforcement in injection molded thermoplastics (internal plastic parts in cars are PP GF or ABS GF etc) is using the length of the fibers to improve the properties and even chopped fibers are about 6mm long, which is too long to use with 0,4 or 0,6mm nozzles. So milled fibers used in filaments having lenght of 0,3-0,6mm that are basically dust really can't improve properties that much as seen for the shear properties in this video for example. Also this "dust" I think is what reduces interlayer adhesion in most cases and for the ones like ABS/ASA that you don't see a big difference it is because other factors like part cooling and chamber temperarutes already affect interlayer adhesion more than the fiber dust does. A very interesting filament that I have not seen you test so far is PP CF (and PP GF). I saw JanTec's video and I see that it is available from a lot of filament manufacturers like ERYONE, Smart Materials 3D, Nanovia, Lehmann and Voss, Filoalfa, Forward AM etc. It is one that I think will have great interlayer adhesion. There are very few PP filaments not filled with fibers though so you would have very little data for comparison like you had only 2 PC CF filament data.
Great video as always Igor. Surprised that the fibers really don't do much for tensile properties, I guess the fibers are too short to make a large difference. As you mentioned, seems like shrinkage/warping are the biggest advantages. However, I've also used CF-nylon for abrasion-resistant parts, eg. as slide protectors on the outside of my inline skates, and see a huge advantage of the fibers in abrasion-resistance over standard nylon. I wonder if there's enough advantages to warrant using these filaments with the serious safety concerns you and others have mentioned. Looking forward to your next video on safety and thanks again for this great video!
9:12 Good idea. I recommend adding a drop of oil to half of the ear cleaners, so that fibers will stick to them more easily. Also, you could try pulling apart cotton balls, instead of ear cleaners. They have less-densely packed fibers. Just remember to inspect and clean up any dripped oil.
hi, thank you for this very good analyse ! i did some résistance tests too on différent filaments, i didn’t compare normal and fiber versions but it seems that QiDi filaments have very good properties. I have tried ABS-GF25 and PAHT-CF and i was happy with this.
Thank you once again! You are saving us a stack of time and money by letting us make informed decisions. Love your testing strategies and comparisons, very clear and easy to understand. Would be interested in seeing strength variations in printed pla plus examples depending on environmental conditions . Eg does a high moisture environment reduce layer adhesion, or does it reduce adhesion between infill and outer shell, as an example. Cheers from Oz.
Intresting test 👍I ve also printed some objects because of the nice metallic surface and not the improved strength. Anyway if I follow the discussion about the particles in the breathing air I think it's saver to sit in your printers room than walking along a road with traffic. The finedust of the tires and diesel exhausts is the real problem of our lungs.
As seen in the data its very helpful for many mechanical parts with fibers(quite dramatic difference in the bending test), the breaking point isnt so relevant if designed properly. But the stiffness is one of the biggest limitation of plastics, especially if stuff needs to be screwed together, keep sealings sealed, higher temperatures, etc.
Excellent testing as usual Dr. Igor. I'll be looking forward to your safety testing of the CF filaments. The things CF filaments bring to the table are exactly why I use them; mainly for the stiffness and how good they look. Have a great weekend!
Thank you very much for the test! How about "graphene" infused filaments. I saw some are already available but expensive. I have seen tests on a shooting range where a piece of plastic mixed with graphene could stop a 9mm bullet.
The issue isn't the carbon fiber, rather that your printing individual bits, held together by plastic. Graphene would be no different. Its a bit like printing very dusty/impure filament, but stiffer. A continous strand of carbon would genuinely enforce, but thats not your avg. hobbiest FDM printer. If your really wanted to, you could pause at specific layers and insert strands of CF or even sheets of graphene every so often. But thats about it, at least I can't imagine any other way of using graphene in 'normal' FDM printing.
@@nerfvinc12121212 Graphene powder can be used in plastics with impressive results! but to achieve that high performance it needs to be treated with compression, and the graphene particulates need proper dispersion within the plastics as well.
I haven't seen many people testing out strengths of annealed PLA-CF prints. I would really be interested in seeing that. Also, PET-CF vs PETG-CF might me a good one as well
I think these filaments don't worth the hype based on the results. And these airborne spikes remind me to the asbestos... You should check how many particles escape during printing, for example placing the cotton pad into the airflow of the part cooling fan.
@@MyTechFun úgy értem a fültisztító pálcikát, vagy vattakorongot tenni a part cooling fan légáramába, és nyomtatás után mikroszkóp alatt megnézni, hogy mennyi kis karbon - tüskét fújt el a ventilátor nyomtatás közben.
One variable that is unclear is how you are controlling is temperature. Are you using the manufacturer's recommendation? Have you tried printing both at the same temperature?
You have to keep one thing in mind (it was tested very intense because of the use of CFK etc). Carbon fibers don't go into the Lung. And they brake up in a different way as asbestos do. It's a complex topic. In medicine (especial in occupational medicine) there was done a lot of science about this topic...
Perhaps for the air particulate test you could use a fan with a hepa filter to circulate the air - something like a DIY solder fume extractor. That way the filter mesh will catch all of the particulate generated and it will be easier to detect with at home equipment.
I'd be curious to see to what extent fibers are introduced into the air while printing. You could put a filter of some kind over the inlet of one of the fans on the printer to see if it picks up any particles. Thanks for the great videos!
Really nice video. Nathan allready said, you dont allways need cf or gf filament and your video shows it quite nicely. I would love to see a comparisson of the mostly used filaments (PLA, PETG, ABS, ASA, TPU, maybe PCTG, and their gf/cf versions) in terms of VOC, PM2.5 and visual confirmation. --> maybe you can print for a few hours with a new heppa filter and some cotton sheet behind it (in a closed enclousure) and afterwards look at the filter with a microscope (if it works it should be binding the particles), but that would mean buying alot of heppa filters ^^ --> for the MP2.5 and VOC you could just place an airquality meter into the housing of the printer and ventilate the housing between the prints (changing the filament you print with) my internet research concluded PETG -> PLA -> TPU -> ASA -> ABS (least harmfull -> most harmful) and GF -> CF, but I would really like to see a test
The only way any kind of fibre can actually reinforce 3D printed parts is if a continuous fibre is introduced into the molten stream at the extruder tip. Markforged printers can do this and the difference is insane. Sometimes more than double the strength. I havnt seen this is hobby grade printers yet.
Really good but it’d be good if you didn’t normalise the values across all the filaments instead of just within each filament (so you can see what is the best overall filament instead of just choosing between cf or not cf for a certain filament).
Yes, this is the main advantage of the Nylon, and it looks like it sticks better to fibers compared to PC (just did some testing today). Probably the "fiber risk" is smaller too with 3D printed nylon objects.
One thing to note is that carbon fiber is really bad if you sand it, as it's as bad as asbestos if you inhale micro dust. So maybe don't use carbon fiber infused for esthetic parts when you plan to sand those.
@@MyTechFun Just as an Info: In Germany we have a small company called "Tinkerforge" which developed a modular system in which many sensors can be implemented almost plug and play. I love working with them, easy, accurate and fairly cheap. They also have a environmental sensor (Air quality, temperature and pressure sensor all in one).
@@MyTechFun : The excellent PMS5003 sensor counts particulates in several size ranges, going down to 0.3 µm. It works with Arduinos; Adafruit has code on her site.
Hi! Thanks for the video! Could it be that the weaker layer adhesion of CF-filaments is caused by the hardened steel nozzle? (poorer heat transfer) Or has the printing temperature been adjusted to suit the steel nozzle?
People who say fiber filaments are worse just because of the lesser properties miss the point. Thanks for all the testing and data! Also interesting to hear your initial findings on the safety angle. I definitely don't think we have enough data there yet to draw any conclusions. Look forward to what you discover.
I don't ever want to buy these after seeing the footage from NbR lol. But looking forward to the video about safety regarding CF. Maybe a simple pair of gloves is sufficient after all...
I have the feeling that some channels try to collect views just creating the drama. I don't like just to present the problem. I always try to understand it and maybe even offer a solution too. Consider CF filaments as woodworking. I can see a lot of similarities.. but I don't want to rush. I will make conclusions after my experimenting..
Zdravo Igore, If you or anyone here is interested, I have done some mods to Voron 2.4R2 to use linear round rods instead of linear rails and posted those on printables, i have the same user name there as here. Sorry but can not post links to it as youtube removes the whole message. Videos of it in use on this channel. Thank you. Hvala i puno pozdrava.
i think you need to measure the size of this particles. at a first glance they look harmless because they are too big. they are 50-100 micron. everything larger than 5 micron is safe to breathe in. (healthy lungs can clean themselves of larger dust particles)
thats because of the weaker layer adhesion (like he said in the video), neither the printer nor the filament discriminates between supports and your "normal" print. I believe the best way is to print with supports of a non binding filament (like petg for pla and vice-versa)
No (if mechanical work is with metal). If with wood, yes. That's why professional woodworkers wear a mask. I think similar safety we need here too.. For hobbyst the risk is much smaller.
FDM printers are great for hobby items and rapid prototyping. There really is no good use for carbon fiber or fiberglass filaments other than for aesthetics as the reall world "strength” improvements are negligible if at all. Sure there are professional machines that can add continuous strands of fibers for strength but none of the consumer versions are capable. They really do need to get consumer fiberglass and carbon fiber filaments off the market. They have no good use in the conumer arena conidering the real health conserns.
Jonapot, Hi man im not commenting often coz i have not much to share about 3D printing ,but in this case i would like to warn you about health risks when you using additived 3D filaments, with glass fiber or carbon stuff. Those materials spoiling surrounded areas, or leaving traces of fibers on working desk, printer or your hands and it even after print, not only as raw material (differs by manufacturer, but noone is perfect). Very dangerous is part of process when material is printed and not fully cured, fan blowing on print part will blow those carbon fibers and glass fibers into air and then into your lungs !!Only way to prevent contamination is after print care with some layer of paint or so. In general pros and cons are in my angle of view clearly against those material, because benefits are minor based on physicaly very disadvantigeous short lenght of fiber material in filament to keep it "flexible" for 3D print usage. I wish you very nice day from Slovakia :)
I knew I will get a lot of these kind of comments. With the reason. There will be a separate video about this topics. In this video I am just pointing to this risk. But you should consider this as a wood working. If you worry about those wood fibers into your skin, wear gloves. If you worry about particles in air, wear mask, safety glasses. This should be taken in account if somebody works with these filaments regularly.
@@warmesuppe They get on your skin and never come out. To the point that they bury themselves. Do you really think that's not a concern? Are you even a trained engineer? Any time you handle these you need to wear dust masks, glasses, gloves and a lab coat at the very least.
I know that this safety question will be popular in comments. There will be a separate video about it. But so far, consider this as a woodworking. Do you worry about wood fibers in your skin? Wear gloves. Do you worry about wood particles in the air? Wear mask, safety glasses. By the way, I wouldn't do this "rubbing against skin" test with the wood, but I did with CF filaments. Of course, those who are working with these materials regularly, they should take in account all those safety measures.
Technically speaking the biggest reason for CF and GF in plastics is to improve warping and shrinkage. Especially with nylon or PA the parts are warped and all the tolreances are off. In most cases it is not the strength and almost always glass fibers are used not carbon fibers because they are way cheaper and don´t create a shot circute or other problems. In 3D printing the CF is popular because people think it improves strengh, it´s just a sales gimmick that´s all. Also it´s really dangerous to work with those materials, you can get something close to "asbestosis" if you are not carefull, so please use your PPE. Good video Igor, well done.
Working for a Canadian Industrial 3D FFF printer manufacturer as the operational trainer, I always suggest that fiber filled materials be handled with caution and are post processed accordingly. A simple clear coating of some sort can effectively mitigate the loose fiber issue completely. Shellac spray or dip, clear varnish / paint or other coating is easy and effective. Most customers are looking for quick parts with zero post processing, but in this case, I always suggest something.
@@SeanTaffert Thanks for the insight Sean. I'll be working at a University next year with a makerspace and will try to bring this knowledge about fiber-filled materials to the managers of the makerspace. Safety of the students should be our top priority and I think 3d printing is just so new that a lot of the safety information isn't broadly understood/distributed.
You can’t compare wood with this topic. Absolutely not.
it would be great to measure how much fibers dust would be produced during the printing. So you could modify your suggested experiment, but instead of rubbing the objects, just print a benchie with enclosure. Use multiple samples to collect the dust do address potential hot spots due to air circulation from the hotend and part cooling fans.
Glad you're going to be testing the safety of fiber filaments in more detail!
For the airborne particle test, place a fan extractor on the enclosure pulling air through a replaceable white HEPA filter, a vacuum cleaner would work instead of a fan. Keep the exit aperture small. Test with a gears mechanism wearing against each other. Your worm gear model design from a previous wear video would seem useful. Perhaps measure particle size and count / mm2 under a microscope with a carefully controlled aperture and flow rate / suction pressure, and consistent speed setting on the gears.
Thank you for great ideas. I like the idea with hepa filter. Maybe I will just use one of my printers and their exhaust fan..
Nice video, in a previous video you mentioned comparing carbon fiber vs glass fiber. I thought this was that video given your title. Hope to see more on this. You do a great job with your testing.
It will be PA6 GF vs CF. But before that it will be a Bambu PC comparison video (3 colors)
Great video as always. Traditional fiber reinforcement in injection molded thermoplastics (internal plastic parts in cars are PP GF or ABS GF etc) is using the length of the fibers to improve the properties and even chopped fibers are about 6mm long, which is too long to use with 0,4 or 0,6mm nozzles. So milled fibers used in filaments having lenght of 0,3-0,6mm that are basically dust really can't improve properties that much as seen for the shear properties in this video for example. Also this "dust" I think is what reduces interlayer adhesion in most cases and for the ones like ABS/ASA that you don't see a big difference it is because other factors like part cooling and chamber temperarutes already affect interlayer adhesion more than the fiber dust does. A very interesting filament that I have not seen you test so far is PP CF (and PP GF). I saw JanTec's video and I see that it is available from a lot of filament manufacturers like ERYONE, Smart Materials 3D, Nanovia, Lehmann and Voss, Filoalfa, Forward AM etc. It is one that I think will have great interlayer adhesion. There are very few PP filaments not filled with fibers though so you would have very little data for comparison like you had only 2 PC CF filament data.
Great video as always Igor. Surprised that the fibers really don't do much for tensile properties, I guess the fibers are too short to make a large difference. As you mentioned, seems like shrinkage/warping are the biggest advantages. However, I've also used CF-nylon for abrasion-resistant parts, eg. as slide protectors on the outside of my inline skates, and see a huge advantage of the fibers in abrasion-resistance over standard nylon. I wonder if there's enough advantages to warrant using these filaments with the serious safety concerns you and others have mentioned. Looking forward to your next video on safety and thanks again for this great video!
9:12 Good idea. I recommend adding a drop of oil to half of the ear cleaners, so that fibers will stick to them more easily. Also, you could try pulling apart cotton balls, instead of ear cleaners. They have less-densely packed fibers. Just remember to inspect and clean up any dripped oil.
hi, thank you for this very good analyse ! i did some résistance tests too on différent filaments, i didn’t compare normal and fiber versions but it seems that QiDi filaments have very good properties. I have tried ABS-GF25 and PAHT-CF and i was happy with this.
I'm glad you'll look into the safety of the CF filaments, especially to be able to identify what's problematic and what's not.
Another great video 👍🏻
Thank you once again! You are saving us a stack of time and money by letting us make informed decisions. Love your testing strategies and comparisons, very clear and easy to understand. Would be interested in seeing strength variations in printed pla plus examples depending on environmental conditions . Eg does a high moisture environment reduce layer adhesion, or does it reduce adhesion between infill and outer shell, as an example. Cheers from Oz.
Intresting test 👍I ve also printed some objects because of the nice metallic surface and not the improved strength. Anyway if I follow the discussion about the particles in the breathing air I think it's saver to sit in your printers room than walking along a road with traffic. The finedust of the tires and diesel exhausts is the real problem of our lungs.
As seen in the data its very helpful for many mechanical parts with fibers(quite dramatic difference in the bending test), the breaking point isnt so relevant if designed properly. But the stiffness is one of the biggest limitation of plastics, especially if stuff needs to be screwed together, keep sealings sealed, higher temperatures, etc.
Excellent testing as usual Dr. Igor. I'll be looking forward to your safety testing of the CF filaments.
The things CF filaments bring to the table are exactly why I use them; mainly for the stiffness and how good they look.
Have a great weekend!
Also, usually the black carbon improves the degradation caused by sunlight. Unfortunately it is darker and absorbs heat better.
Thank you very much for the test! How about "graphene" infused filaments. I saw some are already available but expensive. I have seen tests on a shooting range where a piece of plastic mixed with graphene could stop a 9mm bullet.
The issue isn't the carbon fiber, rather that your printing individual bits, held together by plastic. Graphene would be no different. Its a bit like printing very dusty/impure filament, but stiffer. A continous strand of carbon would genuinely enforce, but thats not your avg. hobbiest FDM printer. If your really wanted to, you could pause at specific layers and insert strands of CF or even sheets of graphene every so often. But thats about it, at least I can't imagine any other way of using graphene in 'normal' FDM printing.
@@nerfvinc12121212 Graphene powder can be used in plastics with impressive results! but to achieve that high performance it needs to be treated with compression, and the graphene particulates need proper dispersion within the plastics as well.
Thank you for this video
I haven't seen many people testing out strengths of annealed PLA-CF prints. I would really be interested in seeing that. Also, PET-CF vs PETG-CF might me a good one as well
I think these filaments don't worth the hype based on the results.
And these airborne spikes remind me to the asbestos...
You should check how many particles escape during printing, for example placing the cotton pad into the airflow of the part cooling fan.
Yes, somebody already suggested, HEPA filter on exhaust fan..
@@MyTechFun úgy értem a fültisztító pálcikát, vagy vattakorongot tenni a part cooling fan légáramába, és nyomtatás után mikroszkóp alatt megnézni, hogy mennyi kis karbon - tüskét fújt el a ventilátor nyomtatás közben.
@@Megavoltamper Köszi. Értem, majd meglátom. Én inkább a kipufogó levegőre vagyok kíváncsi, mennyi lesz a fiber. De még alakul a fejemben az ötlet.
Thank you for the great video!
One variable that is unclear is how you are controlling is temperature. Are you using the manufacturer's recommendation? Have you tried printing both at the same temperature?
You have to keep one thing in mind (it was tested very intense because of the use of CFK etc). Carbon fibers don't go into the Lung. And they brake up in a different way as asbestos do. It's a complex topic. In medicine (especial in occupational medicine) there was done a lot of science about this topic...
Exactly! Healthy? No! Asbestos 2.0? Also no!
carbon fibers are mostly safe. they are too thick to be harmful.
Perhaps for the air particulate test you could use a fan with a hepa filter to circulate the air - something like a DIY solder fume extractor. That way the filter mesh will catch all of the particulate generated and it will be easier to detect with at home equipment.
Yes, probably I will use one of the printers with filter.
Крутое исследование! Вы проделали отличную работу!
I'd be curious to see to what extent fibers are introduced into the air while printing. You could put a filter of some kind over the inlet of one of the fans on the printer to see if it picks up any particles. Thanks for the great videos!
Really nice video. Nathan allready said, you dont allways need cf or gf filament and your video shows it quite nicely.
I would love to see a comparisson of the mostly used filaments (PLA, PETG, ABS, ASA, TPU, maybe PCTG, and their gf/cf versions) in terms of VOC, PM2.5 and visual confirmation.
--> maybe you can print for a few hours with a new heppa filter and some cotton sheet behind it (in a closed enclousure) and afterwards look at the filter with a microscope (if it works it should be binding the particles), but that would mean buying alot of heppa filters ^^
--> for the MP2.5 and VOC you could just place an airquality meter into the housing of the printer and ventilate the housing between the prints (changing the filament you print with)
my internet research concluded PETG -> PLA -> TPU -> ASA -> ABS (least harmfull -> most harmful) and GF -> CF, but I would really like to see a test
I recently discovered that plaCF is best for 3d printed axe heads.
With the higher prices and the health risks, I do not se the appeal of printing infused cf filament at home unfortunately. Great video nevertheless.
The only way any kind of fibre can actually reinforce 3D printed parts is if a continuous fibre is introduced into the molten stream at the extruder tip. Markforged printers can do this and the difference is insane. Sometimes more than double the strength. I havnt seen this is hobby grade printers yet.
But even in that case, only in XY (the printing) direction
You could get a cloth and lay it on some layers in resin printing.
Really good but it’d be good if you didn’t normalise the values across all the filaments instead of just within each filament (so you can see what is the best overall filament instead of just choosing between cf or not cf for a certain filament).
Another really useful video, thank you! Im curious, was the Nylon-CF still better in the break test than for the normal PETG (or even the CF)?
Yes, this is the main advantage of the Nylon, and it looks like it sticks better to fibers compared to PC (just did some testing today). Probably the "fiber risk" is smaller too with 3D printed nylon objects.
@@MyTechFun thank you, that's great to know. Looking forward to the next couple of videos!
One thing to note is that carbon fiber is really bad if you sand it, as it's as bad as asbestos if you inhale micro dust.
So maybe don't use carbon fiber infused for esthetic parts when you plan to sand those.
Yes the particle question is slready a thing on Reddit.
Do you have an air quality meter that can measure PM2.5 and AQI?
No, I don't have (so far)
@@MyTechFun Just as an Info: In Germany we have a small company called "Tinkerforge" which developed a modular system in which many sensors can be implemented almost plug and play. I love working with them, easy, accurate and fairly cheap. They also have a environmental sensor (Air quality, temperature and pressure sensor all in one).
@@MyTechFun : The excellent PMS5003 sensor counts particulates in several size ranges, going down to 0.3 µm. It works with Arduinos; Adafruit has code on her site.
Hi! Thanks for the video! Could it be that the weaker layer adhesion of CF-filaments is caused by the hardened steel nozzle? (poorer heat transfer) Or has the printing temperature been adjusted to suit the steel nozzle?
I don't think so. It may have smaller effect. But I had tests, where I used same printer with CF and non-CF filaments. Similar results.
People who say fiber filaments are worse just because of the lesser properties miss the point. Thanks for all the testing and data! Also interesting to hear your initial findings on the safety angle. I definitely don't think we have enough data there yet to draw any conclusions. Look forward to what you discover.
I don't ever want to buy these after seeing the footage from NbR lol. But looking forward to the video about safety regarding CF. Maybe a simple pair of gloves is sufficient after all...
I have the feeling that some channels try to collect views just creating the drama. I don't like just to present the problem. I always try to understand it and maybe even offer a solution too. Consider CF filaments as woodworking. I can see a lot of similarities.. but I don't want to rush. I will make conclusions after my experimenting..
Could be a good idea to moisture a little bit the ear cleaners.
Yes, that is my plan too. But thx for suggestion
Zdravo Igore,
If you or anyone here is interested, I have done some mods to Voron 2.4R2 to use linear round rods instead of linear rails and posted those on printables, i have the same user name there as here.
Sorry but can not post links to it as youtube removes the whole message. Videos of it in use on this channel.
Thank you.
Hvala i puno pozdrava.
i think you need to measure the size of this particles. at a first glance they look harmless because they are too big.
they are 50-100 micron. everything larger than 5 micron is safe to breathe in. (healthy lungs can clean themselves of larger dust particles)
For printing properties PLA-CF supports are very easy to remove. That is one of the top reasons I love printing with PLA-CF!
thats because of the weaker layer adhesion (like he said in the video), neither the printer nor the filament discriminates between supports and your "normal" print.
I believe the best way is to print with supports of a non binding filament (like petg for pla and vice-versa)
Did look for airborne particles when you do mechanical work, like drilling or sanding?
No (if mechanical work is with metal). If with wood, yes. That's why professional woodworkers wear a mask. I think similar safety we need here too.. For hobbyst the risk is much smaller.
The fibers in the filaments are too big to go into the lung. They are usually above 5 um and the danger starts at below 3 um
What about sanding?
FDM printers are great for hobby items and rapid prototyping. There really is no good use for carbon fiber or fiberglass filaments other than for aesthetics as the reall world "strength” improvements are negligible if at all. Sure there are professional machines that can add continuous strands of fibers for strength but none of the consumer versions are capable. They really do need to get consumer fiberglass and carbon fiber filaments off the market. They have no good use in the conumer arena conidering the real health conserns.
Shrinkage is a big deal and less shrinkage with fiber infused filaments is a big deal for rapid prototyping.
Jonapot, Hi man im not commenting often coz i have not much to share about 3D printing ,but in this case i would like to warn you about health risks when you using additived 3D filaments, with glass fiber or carbon stuff. Those materials spoiling surrounded areas, or leaving traces of fibers on working desk, printer or your hands and it even after print, not only as raw material (differs by manufacturer, but noone is perfect). Very dangerous is part of process when material is printed and not fully cured, fan blowing on print part will blow those carbon fibers and glass fibers into air and then into your lungs !!Only way to prevent contamination is after print care with some layer of paint or so. In general pros and cons are in my angle of view clearly against those material, because benefits are minor based on physicaly very disadvantigeous short lenght of fiber material in filament to keep it "flexible" for 3D print usage.
I wish you very nice day from Slovakia :)
I knew I will get a lot of these kind of comments. With the reason. There will be a separate video about this topics. In this video I am just pointing to this risk. But you should consider this as a wood working. If you worry about those wood fibers into your skin, wear gloves. If you worry about particles in air, wear mask, safety glasses. This should be taken in account if somebody works with these filaments regularly.
@@MyTechFun I see.
Shear rhymes with beer. Isn’t English great?
lol
Stop using carbon fiber material especially if you do mechanical work on your printed parts.
The amount of npcs in the comments of this video about the fibres.... I bet you all still wear a mask in 2024 as well.
STOP USING CARBON/GLASS/ANYTHING FIBER. THEY ARE A HEALTH HAZARD.
BYE BYE LUNGS!!!
🤦♂️
@@lawabidingcitizen5153 any proof of people being harmed by these filaments? Didn't think so...
Google “Silicosis” I think CF and GF are identical by their impact on the health.
Although I think we should research more and also be cautious, we shouldn't demonize these filaments either.
@@warmesuppe
They get on your skin and never come out. To the point that they bury themselves.
Do you really think that's not a concern?
Are you even a trained engineer?
Any time you handle these you need to wear dust masks, glasses, gloves and a lab coat at the very least.